<template>
    <div class="shopcar_container">
        <div class="goods-list">
        <!-- 商品列表区域 -->
             <div class="mui-card" v-for="(item,i) in goodslist" :key="item.id">
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<mt-switch v-model="$store.getters.getGoodsSelected[item.id]"
                        @change="selectChange(item.id,$store.getters.getGoodsSelected[item.id])"></mt-switch>
                        <img :src="item.thumb_path" alt="">
                        <div class="info">
                            <h1>{{item.title}}</h1>
                            <p>
                                <span class="price">{{item.sell_price}}</span>
                                <numbox :initCount="$store.getters.getGoodsCount[item.id]"  :goodsid="item.id"></numbox>
                                <!-- 问题 如何从购物车 中获取商品的数量 呢 -->
                                <!-- 1， 我们可以先创建 空对象，然后 循环 购物车中所有的商品的数据，把商品的id当作属性值，count当作对象的属性值
                                这趟就得到一个对象 { 88:2} -->
                                <a href="" @click.prevent="remove(item.id,i)">删除</a>
                            </p>
                        </div>
					</div>
				</div>
			</div>  
        </div>
        <!-- 商品结算区域 -->
        <div class="mui-card">
            <div class="mui-card-content">
                <div class="mui-card-content-inner jiesuan" >
                    <div class="left">
                        <p>总计（不含运费）</p>
                        <p>已勾选商品 <span class="red">{{$store.getters.getGoodsCountAndAmount.count}}</span> 件，总价<span class="red">￥{{$store.getters.getGoodsCountAndAmount.amount}}</span></p>
                    </div>
                    <mt-button type="danger" >去结算</mt-button>
                </div>
            </div>
        </div>
    </div>
    
    
</template>
<script>
import numbox from '../subcomponents/shopcar-numbox.vue'
export default {
    data(){
        return {
            goodslist:[]//存放购物车所有商品
        }
    },
    created(){
        this.getGoodsList()
    },
    methods:{
        getGoodsList(){
            // 获取到store中所有商品的id，然后拼接成一个字符串
            var idArr = []
            
            this.$store.state.car.forEach(item => {
                idArr.push(item.id);
            })
            // 如果购物车中没有商品 ，则直接结束
            if(idArr.length <=0)
            {
                return;
            }
            // 获取购物车的商品列表
            this.$http.get('api/goods/getshopcarlist/'+idArr.join(",")).then(result => {
                if(result.body.status==0)
                {
                    this.goodslist = result.body.message;
                }
            })
        },
        remove(id,index){
            // 点击删除，把商品从 store 中根据传递的 id删除，同时，吧当前组件中的goodslist 中，对应 要删除那个商品，使用，index删除
            this.goodslist.splice(index,1)
            this.$store.commit("removeFormCar",id)
        },
        selectChange(id,val){
            this.$store.commit("updateGoodsSelected",{id,selected:val})
        }
    },
    components:{
        numbox
    }
}
</script>
<style lang="scss" scoped>
    .shopcar_container{
        background-color: #eee;
        overflow: hidden;
        .goods-list{
            .mui-card-content-inner{
                display: flex;
                align-items: center;
            }
            img{
                width: 60px;
                height: 60px;
            }
            h1{
                font-size: 13px;
            }
            .info{
                display: flex;
                flex-direction: column;
                justify-content: space-between;
                .price{
                    color: red;
                    font-weight: bold;
                }
            }
        }
        .jiesuan{
            display: flex;
            justify-content: space-between;
            align-items: center;
            .red{
                color: red;
                font-weight: bold;
                font-size: 16px;
            }
        }
    }
</style>